Home / 13,346.49-18,417.96-7,378.04

Finding the Fourth Proportional to 13,346.49, 18,417.96 and 7,378.04

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Solution

The fourth proportional to 13,346.49, 18,417.96 and 7,378.04 is: 10,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.49 : 18,417.96 = 7,378.04 : x
  2. Step 2: Convert to fraction form
    13,346.49/18,417.96 = 7,378.04/x
  3. Step 3: Cross multiply
    13,346.49x = 18,417.96 × 7,378.04
  4. Step 4: Simplify right side
    13,346.49x = 135,888,353.51
  5. Step 5: Solve for x
    x = 135,888,353.51/13,346.49
  6. Step 6: Final answer
    x = 10,181.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.